<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="../bootstrap-5.1.3-dist/css/bootstrap.css">
    <script src="../bootstrap-5.1.3-dist/js/bootstrap.js"></script>
</head>

<body class="container">
    <h3 align="center">帮助文本</h3>
    <form>
        <div class="form-group row">
            <label for="password">密码</label>
            <input type="password" id="password" class="form-control">
            <small class="form-text text-muted">
                密码必须有8-18个字符，包含字母和数字，并且不能包含空格、特殊字符或表情符号。
            </small>
        </div>
    </form>
</body>



</html>